Diesel Timing belt change - AUSJEEPOFFROAD.COM Jeep News Australia and New Zealand

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Old 04-04-2011
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Default Diesel Timing belt change

I've finally got to change a timing belt on a JK diesel - and in reality was surprised that it wasn't half black magic ( considering how much of a PITA I thought it would be ). If you've never done one before then allow around seven hours if you keep at it - obviously a dealer would probably be around five(ish).

No special tools required, anyone with the usual sockets, open enders and assorted other small hand tools will be fine. Only "special" tool is a largish shifter to remove the fan boss and a paint pen to mark the sprockets.

Removing the fan(s) and shroud takes the most time but once its out its reasonably straightforward if your carefull. Believe it or not the washer bottle removal is almost the biggest pita

Obviously maintaining the sprocket relationships is ESSENTIAL but i can confirm that the special service tools aren't required if your carefull and mark everything before removing the old belt. Setting the belt tension is also simple once you've figured out how the tension indicator actually works.
As your not using the camshaft locking tool you don't need to replace the sealing bung on the front of the exhaust camshaft.

You don't loose any oil or water but its worth washing out the radiator whilst the shroud is off - the crap that comes out is a "bit" depressing.

So if you want to save $$$ and are mechanically competent there's no reason why you shouldn't do the cam belt yourself. However if you'ver never fitted a cam belt to anyting before then probably not a job for you OR get a mate who has - to help.

P.S. the replacement cam belt came from Double Black Offroad.
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Old 04-04-2011
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sounds like you changed only the belt, not the tensioner or any pulleys or water pump which is behind the rear timing cover. were there any signs of wear in these components or were they still like new?
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Old 04-04-2011
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Yes I changed the belt only, carefully inspected the other components for signs of wear - all were fine. The vehicle has seem lots of off road use so its pretty comforting from Diesel owners IMHO . All compnents internal to the timing covers had a very faint coat of "dust" but considering what the vehcile has been through - the timing covers can be pretty much considered sealed.

I suppose if you wanted to start pulling other bits off then you could whilst its stripped, but as everything was still in good condition and the vehicle had no other issues, i couldn't see the value in it.

If you wanted to change the tensioner it wouldn't take any extra time just extra $$. Personally i'd want a damm good reason to start stripping any more than the belt and possibly tensioner........
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Old 04-04-2011
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If your interested in doing mine pm me a price.
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Old 04-04-2011
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Um... not going to fit in well with my real job but contact Bill @ DBOR ( http://www.doubleblackoffroad.com/main.php ). Bills mechanic knows his stuff.
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Old 04-04-2011
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Quote:
Originally Posted by MightyMouse View Post
Yes I changed the belt only, carefully inspected the other components for signs of wear - all were fine. The vehicle has seem lots of off road use so its pretty comforting from Diesel owners IMHO . All compnents internal to the timing covers had a very faint coat of "dust" but considering what the vehcile has been through - the timing covers can be pretty much considered sealed.

I suppose if you wanted to start pulling other bits off then you could whilst its stripped, but as everything was still in good condition and the vehicle had no other issues, i couldn't see the value in it.

If you wanted to change the tensioner it wouldn't take any extra time just extra $$. Personally i'd want a damm good reason to start stripping any more than the belt and possibly tensioner........
thanks. i'd often wondered about whether i should do the lot including water pump to eliminate the possibilty of having to do it all over again because of a pulley, tensioner or water pump failure.
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Old 04-04-2011
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so how many KM have you done?
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